CN113498751A - Device and method for constructing near-shore multi-level ecological fishery mode - Google Patents
Device and method for constructing near-shore multi-level ecological fishery mode Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/70—Artificial fishing banks or reefs
- A01K61/75—Artificial fishing banks or reefs floating
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G33/00—Cultivation of seaweed or algae
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to the field of mariculture, in particular to a device and a method for constructing a near-shore multi-level ecological fishery mode. Comprises a buoy 1, a main cable 2, a algae hanging rope 3, a fixed hook 4 and an artificial reef 5; one end of a main mooring rope 2 is fixedly connected with the buoy 1, the other end of the main mooring rope 2 is fixedly connected with the artificial reef body 5 through a fixing hook 4, and the middle section of the algae hanging rope 3 is fixedly connected with one end of the main mooring rope 2, which is far away from the artificial reef body 5. In a throwing area, throwing the artificial reef 5 into seawater to provide a moving space for marine organisms; cutting off the algae, selecting the algae section at the growing end, fixing the algae section on the algae hanging rope 3 to proliferate the algae, and further realizing the construction of the near-shore multi-level ecological fishery mode. The method can increase the biomass of the algae-fish-shellfish-sea cucumber, has ingenious structural design, fully considers the living and inhabiting environments of the algae, the fishes, the shellfish and the sea cucumber, improves the biodiversity of the artificial reef area and the stability of the ecosystem, and is beneficial to improving the repair effect of the offshore ecosystem.
Description
Technical Field
The invention relates to the field of mariculture, in particular to a device and a method for constructing a near-shore multi-level ecological fishery mode.
Background
At present, the rapid development of seawater culture brings a plurality of ecological environment problems, such as the problems of disordered discharge of culture tail water, the deterioration of culture water area environment, serious eutrophication, frequent red tide, safe aquatic product quality and the like. In 2019, Ten committees in the Ministry of agricultural rural areas and the like jointly submit an opinion on accelerating the green development of aquaculture industry, accelerate the green development of aquaculture industry and promote the transformation and upgrade of industry. In China, the seawater culture has pursued the increase of culture area and culture yield in the past, and turns to pay more attention to the quality of aquatic products and the ecological environment of fishery. In recent years, China's coastal provinces and cities are successively explored to establish multi-level ecological fishery modes, most cement building pieces, sunken ships, stones and the like are put in to construct offshore marine ranches, the investment is huge, the selection of sea areas is rigorous, and the problems that the original ocean currents and the sinking siltation phenomena are more and more common are solved. Many artificial reefs only pay attention to the recovery of the number of one or two species of population organisms in the design link, the overall consideration of biodiversity and community structure stability is neglected, the thrown reefs generally lack the coupling design covering various functional organisms (such as shellfish, algae, ginseng, fish and the like), and the problem seriously restricts the upgrading of the aquaculture industry to the ecotype.
In the prior art, a preliminary study on ecological restoration effect of a swertia island offshore pasture demonstration area (Chengyong, Tao, Yi-enhanced, Liu-Yong-Hu, Chen-Lei, Wang-gang, 2014) records that the density of sea cucumbers is increased by about 14% in nearly 2 years by putting artificial fish reefs and combining with precious marine offspring seed bottom sowing construction, the sea cucumber density is investigated for 9 years continuously after the swertia island is thrown into the reefs, and the sea cucumber density change in the first 5 years is not obvious from the research data, the sea cucumber culture density is obviously increased from the 6 th year and is increased year by year, which indicates that the method is used for improving the sea cucumber yield, the optimal effect can be achieved within 5-6 years, and the time for improving the sea cucumber yield is too long.
In addition, "the effect of conserving resources of artificial fish reefs in the bay of the haizhou (zhang tiger, etc., marine fishery 2005(01): 38-43)" discusses the condition of conserving resources of fishery in the fish reef area after the artificial fish reefs in the bay of the haizhou are put into the sea, the fishing yield in the artificial fish reef area of the bay of the haizhou is increased by 62.98%, but the method only has obvious effect on fishes, shrimps, cephalopods, etc., and the effect on the sea cucumber is not obvious.
Disclosure of Invention
The invention aims to provide a device and a method for constructing a near-shore multi-level ecological fishery mode.
In order to achieve the purpose, the invention adopts the technical scheme that:
a device for constructing a near-shore multi-level ecological fishery mode comprises a buoy 1, a main cable 2, an algae hanging rope 3, a fixed hook 4 and an artificial reef body 5;
one end of the main cable 2 is fixedly connected with the buoy 1, the other end of the main cable 2 is fixedly connected with the artificial reef 5 through the fixing hook 4, and the middle section of the algae hanging rope 3 is fixedly connected with one end of the main cable 2, which is far away from the artificial reef 5;
the artificial reef body 5 comprises a hollow polygonal prism 6, an attachment body 7 and a base;
an attachment 7 is arranged in the hollow polygonal prism 6, and the bases are respectively positioned at two ends of the bottom side of the hollow polygonal prism 6 and are integrated with the hollow polygonal prism 6 into a whole;
the attachment 7 includes a plurality of long blades F and a plurality of short blades C, the long blades F and the short blades C are alternately arranged, the length directions of the long blades F and the short blades C are the same as the length direction of the hollow polygonal prism 6, and at least one long blade abuts against the inner surface of any one side surface of the hollow polygonal prism 6.
The hollow polygonal prism 6 is a hollow regular triangular prism, a hollow regular quadrangular prism, a hollow regular pentagonal prism or a hollow regular hexagonal prism;
the number of long blades F and short blades C of the "attached body" 7 is the same as the number of side edges of the hollow polygonal prism 6.
Preferably, the hollow polygonal prism 6 is a hollow regular triangular prism, the attachment 7 includes three long blades F and three short blades C, the long blades F and the short blades C are alternately arranged, and an included angle α between any one long blade F and an adjacent short blade C is 60.
The long blade F and the short blade C of the "attachment" 7 are both cuboids, and the length of the cuboid is the same as the length of the side edge of the hollow polygonal prism 6.
Preferably, the short blade C and the long blade F of the attachment 7 are respectively provided with holes 8, and the number of the holes 8 is at least 2, and the size is 10-20 cm.
The fixed hook 4 is a stainless steel hook, and the main cable 2 is connected with the fixed hook 4 through a binding belt.
The number of the fixed hooks 4 is n (namely the number of the seaweed ropes), x is the length of the main rope, the length of the main rope is equal to the throwing water depth of-1 m, A is the length of the 'attachment' 7, and h is the tidal range, then
n is an integer.
The diameter of the main cable 2 is 12mm-15 mm;
the diameter of the algae hanging rope 3 is 5-7mm, the distance between the fixed position of the algae hanging rope 3 and the main cable 2 and the buoy 1 is 2-3m, the length of the algae hanging rope 3 is 3m-5m, and the number of the algae hanging ropes is 5-8;
the side lengths of triangles outside the hollow triangular prism 6 are equal to 60cm, the length of the hollow triangular prism is 100cm, and the thickness of the hollow triangular prism is 5 cm.
The short blade C of the "attachment body" 7 has a length of 100cm, a width of 6 to 8cm, and a thickness of 3 to 4cm, and the long blade F has a length of 100cm, a width of 30 to 35cm, and a thickness of 3 to 4 cm.
The hollow polygonal prism 6, the attachment 7 and the base are all made by mixing crushed shells, oyster shells and reinforced concrete.
The base is 60cm long, 40cm wide and 30cm high.
A method for constructing a near-shore multi-level ecological fishery model by adopting the device,
in the throwing area, will artifical reef body 5 is thrown into the sea water, provides the activity space for marine organism, cuts off the marine alga, selects the marine alga section of growing end, is fixed in the marine alga section and carries out the hyperplasia of marine alga on hanging algae rope 3, and then realizes the structure of the ecological fishery mode of nearly bank multilevel.
The method specifically comprises the following steps:
(1) determining the throwing time according to the suitable temperature range and climate conditions of different thrown marine animals, and determining the throwing area according to the position of the buoy in the sea area;
(2) in a putting area, putting the artificial reefs 5 into seawater, ensuring that the bases are downward and the interval between adjacent single artificial reefs 5 is 5-8m, and putting the seedlings on the artificial reefs 5;
(3) cutting the seaweed, selecting the seaweed section at the growing end, fixing the seaweed section on a seaweed hanging rope 3, fixing the seaweed hanging rope 3 at the corresponding position of a main cable 2, and fixedly connecting the main cable 2 with an artificial reef 5 in the seawater through a fixing hook 4 to proliferate the seaweed.
The seaweed includes, but is not limited to, seaweed of Laminariaceae, Sargassaceae.
The length of the seaweed section is 30-40 cm.
Each algae hanging rope 3 can fix 30-40 algae.
The invention has the advantages that:
the invention solves the problems in the prior art, provides a method for constructing a near-shore multi-level ecological fishery model, can increase the biomass of algae-fish-shellfish-sea cucumber, has ingenious structural design, fully considers the living and inhabiting environments of algae, fish, shellfish and sea cucumber, improves the biodiversity of an artificial reef area and the stability of an ecological system, is beneficial to improving the repair effect of the near-shore ecological system, and specifically comprises the following steps:
1. the invention fully utilizes different ecological niches of the ocean, realizes the purpose of simultaneously increasing and culturing organisms of a plurality of nutrition levels, transplants seaweed on the upper layer, gathers fish, can effectively improve the water quality of near-shore seawater, and provides places for avoiding enemies, killing baits and spawning for a plurality of invertebrates and fish; the lower layer is a hollow prism artificial reef body which provides a moving space for sea animals such as sea cucumbers, abalones, conchs and the like.
2. The ecological fishery model is suitable for various substrate environments near shore, the bottom sides of the hollow polygonal prisms are provided with the two cuboid bases, the artificial reefs can be effectively prevented from being submerged by sludge, and the ecological fishery model has good popularization and use values particularly for sludge substrates.
3. The artificial reef body with the hollow polygonal prism and the 'attachment' structure increases the internal and external surface areas and the included angle of the reef body, fully utilizes the touch (life habit of contacting with solid matters) of marine animals such as sea cucumbers, abalones and the like, provides more attachment space for invertebrates, improves the breeding increase of the marine animals such as the sea cucumbers, the abalones, conchs and the like in the unit reef body, preferably selects the regular triangular prism because the regular triangular prism has stable structure and stronger pressure resistance and is not easy to roll and shift after being placed on the seabed, increases holes on the blades of the 'attachment' for further expanding the activity space of the marine animals such as the sea cucumbers, the abalones, the conchs and the like, increases the activity area of the reef-attaching marine animals in the artificial reef body, obviously increases the attachment area formed by unit materials, reduces the material consumption, reduces the overall quality, saves the production cost, And carrying and putting cost.
4. The internal cavity formed by the hollow polygonal prism and the 'attachment' has the advantages of shading, good ventilation and water flowing property and the like, is beneficial to marine organism activities in a high-temperature environment, can also form flow states such as ascending water flow, vortex and the like, brings seabed nutritive salt and deposited organic matters to the middle layer and the upper layer of seawater, increases the fertility of a water area, and further improves the aquaculture amount of the sea area.
5. The artificial reef utilizes the crushed shells and the oyster shells to replace part of cement and sand, realizes waste utilization, avoids waste polluting the environment, and is beneficial to marine ecological environment protection. The artificial reef has rough surface and is suitable for the attachment and growth of large seaweed sporophytes, and the oyster shell and the shell powder contain elements such as calcium, magnesium and the like, are closer to the nature of the sea and are beneficial to the inhabitation and growth of sea cucumbers, abalones, sea snails and the like.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for constructing a near-shore multi-level ecological fishery model;
FIG. 2 is a schematic view of the structure of "attachment" 7.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Referring to fig. 1, the device for constructing the near-shore multi-level ecological fishery mode comprises a buoy 1, a main cable 2, an algae hanging rope 3, a fixed hook 4 and an artificial reef 5;
one end of a main cable 2 is fixedly connected with the buoy 1, the other end of the main cable 2 is fixedly connected with the artificial reef body 5 through a fixing hook 4, and the middle section of the algae hanging rope 3 is fixedly connected with one end of the main cable 2, which is far away from the artificial reef body 5.
The artificial reef body 5 comprises a hollow regular triangular prism 6, an attachment body 7 and a base; an attachment 7 is arranged in the hollow regular triangular prism 6, and the bases are respectively positioned at two ends of the bottom side of the hollow regular triangular prism 6 and are integrated with the hollow regular triangular prism into a whole;
the attachment 7 comprises three long blades F and three short blades C, the long blades F and the short blades C are alternately arranged, the included angle alpha between any one long blade F and the adjacent short blade C is 60, the length directions of the long blades F and the short blades C are the same as the length direction of the hollow polygonal prism 6, and at least one long blade is abutted with the inner surface of any one side surface of the hollow regular triangular prism 6.
The long blade F and the short blade C of the "attachment" 7 are both cuboids, and the length of the cuboid is the same as the length of the side edge of the hollow polygonal prism 6.
the fixed hook 4 is a stainless steel hook, and the main cable 2 is connected with the fixed hook 4 through a binding belt;
number of fixing hooks 4
The actually measured average tidal range h is 1m, the length x of the main cable is 5m when the water depth is-1 m, and the length A of the triangular prism is 1m, so n is 1.
The diameter of the main cable 2 is 12mm-15 mm;
the diameter of the algae hanging rope 3 is 6mm, the distance between the fixed position of the algae hanging rope 3 and the main cable 2 and the buoy 1 is 2m, the algae hanging rope 3 is 3m-5m long, and the number of the algae hanging ropes is 5;
the side lengths of the triangles outside the hollow regular triangular prism 6 are equal to 60cm, the length of the hollow regular triangular prism is 100cm, and the thickness of the hollow regular triangular prism is 5 cm;
the short blade C of the "attachment" 7 has a size of 100cm long, 8cm wide and 4cm thick; the long blade F is 100cm long, 35cm wide and 4cm thick;
the size of the base is 60cm long, 40cm wide and 30cm high;
the hollow regular triangular prism 6, the attachment 7 and the base are all made by mixing crushed shells, oyster shells and reinforced concrete.
The method for constructing the near-shore multi-level ecological fishery mode by adopting the device comprises the following steps:
the Sargassum is Sargassum horneri of Sargassaceae;
the seedlings are sea cucumber seedlings;
(1) selecting a sea area of Changdao grandfather village in tobacco terrace with sediment as a release area, releasing the sea area in spring and autumn at the water temperature of 8-18 ℃, wherein the sea cucumber seed specification is 200-1000 heads/kg, and 5-10 sea cucumber seeds are released per square meter;
(2) in a putting area, putting the artificial reefs 5 into seawater, ensuring that the base is downward, arranging 200 artificial reefs 5 at the interval of 8m between adjacent single artificial reefs 5, selecting healthier sea cucumber seeds, putting the sea cucumber seeds into a 20-mesh net bag before putting, accurately putting the seeds on the artificial reefs 5 by a diver, and slowly climbing out of the net bag by the sea cucumber seeds, wherein each seedling is put at 7:00-9:00 or 16:00-18:00 in the morning on a sunny day with stable ocean current and small wind power, and is forbidden to be put in the rainy day or the sunny day in the afternoon. If the tide is high, the lower part of the tide is selected to be thrown, and when the tide is low, the upper part of the tide is selected to be thrown. Before putting, the artificial reef 5 and the sea urchins and the crabs within the range of 5-10m around the artificial reef are removed through a ground cage net or a diver so as to improve the survival rate of the thrown seedlings.
(3) Cutting the Sargassum horneri, selecting a Sargassum horneri section with a growth end of 30-40cm, fixing the Sargassum horneri section on the algae hanging rope 3, fixing the algae hanging rope 3 at the corresponding position of the main cable 2, and fixedly connecting the main cable 2 with the artificial reef body 5 in the seawater through the fixing hook 4 to proliferate Sargassum horneri.
The implementation effect is as follows:
through the application of the device and the method of the embodiment for two years, the density of the sea cucumbers in the ecological fishery area constructed by the invention is increased by 30%, the density of the biomass of the fishery is increased by 63%, and the density of the fishery tailing is increased by 43%. The investigation method comprises the following steps: and analyzing the fishery resource density by adopting the fishing Knoop net unit fishing Knoop power fishing yield (CPUE). The unit fishing Nu force catch amount (CPUE) of the cage net is that the unit of catch weight of the cage net per net time per day is g.net-1·d-1(ii) a Number of fish catches per net time per day of ground cage netIn ind-1·d-1。
For better comparison and research, the above examples and (Chengyong et al, initial research on ecological restoration effect in the demonstration area of the swertia island offshore marine ranch, 2014), (Zhang et al, initial research on maintenance resource effect of artificial fish reef in the gulf of Haizhou, marine fishery, 2005(01):38-43) are all experimental results obtained by the same evaluation and analysis method. The embodiment shows that the method can obviously improve the breeding amount of the sea cucumbers in a unit reef body, particularly has obvious effect on increasing the quantity of the fish catches, and meanwhile, the time for improving the yield is obviously shorter than that of the prior art, and the recovery effect of the produced fishery resources reaches the domestic advanced level.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. For those skilled in the art to which the invention pertains, several equivalent substitutions or obvious modifications can be made without departing from the inventive concept, and the same properties or uses should be considered as falling within the scope of the present patent.
Claims (8)
1. The utility model provides a construct device of ecological fishery mode of nearly bank multilevel which characterized in that: comprises a buoy (1), a main cable (2), a algae hanging rope (3), a fixed hook (4) and an artificial reef body (5);
one end of the main mooring rope (2) is fixedly connected with the buoy (1), the other end of the main mooring rope (2) is fixedly connected with the artificial reef body (5) through a fixing hook (4), and the middle section of the algae hanging rope (3) is fixedly connected with one end of the main mooring rope (2) far away from the artificial reef body (5);
the artificial reef body (5) comprises a hollow polygonal prism (6), an attachment (7) and a base;
an attachment (7) is arranged in the hollow polygonal prism (6), and the bases are respectively positioned at two ends of the bottom side of the hollow polygonal prism (6) and are integrated with the hollow polygonal prism (6);
the attachment (7) comprises a plurality of long blades F and a plurality of short blades C, the long blades F and the short blades C are alternately arranged, the length directions of the long blades F and the short blades C are the same as the length direction of the hollow polygonal prism (6), and at least one long blade is abutted against the inner surface of any one side surface of the hollow polygonal prism (6).
2. The apparatus of claim 1, wherein: the hollow polygonal prism (6) is a hollow regular triangular prism, a hollow regular quadrangular prism, a hollow regular pentagonal prism or a hollow regular hexagonal prism;
the number of the long blades F and the short blades C of the attachment (7) is the same as the number of the side edges of the hollow polygonal prism (6).
3. The apparatus of claim 2, wherein: the hollow polygonal prism (6) is a hollow regular triangular prism, the attachment (7) comprises three long blades F and three short blades C, the long blades F and the short blades C are alternately arranged, and the included angle alpha between any one long blade F and the adjacent short blade C is 60.
4. The apparatus of claim 1, wherein: the long blade F and the short blade C of the attachment (7) are both cuboids, and the length of the cuboids is the same as the length of the side edge of the hollow polygonal prism (6).
5. The apparatus of claim 3, wherein: the short blade C and the long blade F of the attachment (7) are respectively provided with holes (8), the number of the holes (8) is at least 2, and the size is 10-20 cm.
6. The apparatus of claim 1, wherein:
the hollow polygonal prism (6), the attachment (7) and the base are all made by mixing crushed shells, oyster shells and reinforced concrete.
7. The method for constructing the near-shore multi-level ecological fishery model by adopting the device of any one of claims 1 to 6, is characterized in that: in a throwing area, throwing the artificial reef body (5) into seawater to provide a moving space for marine organisms; cutting off the algae, selecting the algae section at the growing end, fixing the algae section on the algae hanging rope (3) to proliferate the algae, and further realizing the construction of the offshore multi-level ecological fishery mode.
8. The method of claim 7, wherein:
the seaweed includes, but is not limited to, seaweed of Laminariaceae, seaweed of Sargassaceae.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110684647.0A CN113498751B (en) | 2021-06-21 | 2021-06-21 | Device and method for constructing offshore multi-level ecological fishery mode |
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| JP2005237357A (en) * | 2004-02-23 | 2005-09-08 | Tokushukai Kaiyo Igaku Kenkyusho:Kk | Construction of algae reef by accumulation and maintenance of biodegradable plastic artificial floating algae and large-sized sea algae seedling-attached floating algae |
| CN201341357Y (en) * | 2008-12-18 | 2009-11-11 | 中国水产科学研究院黄海水产研究所 | Artificial fish reef for proliferation of precious marine products |
| CN203181787U (en) * | 2012-11-07 | 2013-09-11 | 国家海洋局第一海洋研究所 | Combined type multilayer triangle-shaped artificial reef for pond sea cucumber cultivation |
| CN106614203A (en) * | 2016-10-27 | 2017-05-10 | 中国水产科学研究院东海水产研究所 | Combined artificial fish reef |
| CN107593417A (en) * | 2017-08-22 | 2018-01-19 | 中国科学院烟台海岸带研究所 | Marine alga enhancement releasing equipment and marine alga enhancement releasing method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005237357A (en) * | 2004-02-23 | 2005-09-08 | Tokushukai Kaiyo Igaku Kenkyusho:Kk | Construction of algae reef by accumulation and maintenance of biodegradable plastic artificial floating algae and large-sized sea algae seedling-attached floating algae |
| CN201341357Y (en) * | 2008-12-18 | 2009-11-11 | 中国水产科学研究院黄海水产研究所 | Artificial fish reef for proliferation of precious marine products |
| CN203181787U (en) * | 2012-11-07 | 2013-09-11 | 国家海洋局第一海洋研究所 | Combined type multilayer triangle-shaped artificial reef for pond sea cucumber cultivation |
| CN106614203A (en) * | 2016-10-27 | 2017-05-10 | 中国水产科学研究院东海水产研究所 | Combined artificial fish reef |
| CN107593417A (en) * | 2017-08-22 | 2018-01-19 | 中国科学院烟台海岸带研究所 | Marine alga enhancement releasing equipment and marine alga enhancement releasing method |
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